With this softhphone you can register SIP and IAX users but can call only through SIP channels. The phone can be downloaded for free from http://www.marccharbonneau.com/asterisk/mediaxphone.php but you must have an Asterisk installed and registered extensions and users as we did.

To register a user click Params and adjust the settings you want to change.

Here I register user ivan_iax who is registered in iax.conf and in extensions.conf we made extension 1111 that dials this user.

These are the default audio settings. You can select VIA or USB device if you know exactly what sound card you are using but windows can recognize this.

Lets make a test call to a X-Lite user. Now we are calling number 1234 and this is user ivan.

That is what the CLI shows. User ivan_iax calls user ivan.